Hello Paul

You seem to have what Dave here in Reno did. The Express was with a 900 engine. This was taken out and a VW engine put in. Then, we (Dave) took the VW out and put a rebuilt 1100 engine in. The 1st engine, the 900, was behind the front beam. That meant adding the new engine to fit also behind the beam, cutting the lower part of the cabin almost a foot. It all fits now, sticking out the back slightly. Dyck